currently we have three OpenLDAP servers in multi-master mode and with MemberOf . Currently, the base DN is dc=oldorgname,dc=de. The name of the organization changed and all entries should be accessable through base dc=neworgname,dc=de and all attributes with DNs as value shall return this new base. First I tried relay with rwm in this configuration: dn: cn=module{1},cn=config changetype: modify add: olcmoduleload olcModuleLoad: back_relay.la dn: olcDatabase={2}relay,cn=config changetype: add objectClass: olcRelayConfig olcSuffix: dc=neworgname,dc=de olcRelay: dc=oldorgname,dc=de dn: olcOverlay=rwm,olcDatabase={2}relay,cn=config changetype: add objectClass: olcRwmConfig olcRwmRewrite: rwm-suffixmassage "dc=oldorgname,dc=de" But this caused slapd to dump core at different entries, when I query the whole database as administrator pulling all attributes. As this module is "experimental", so I went another way. Should I try another config? Second, I tried to create a consumer server with a separate database using and suffixmassage. olcSyncrepl: {2}rid=004 provider=ldap://server:389/ bindmethod=simpl  e binddn="cn=dn" credentials="pwd" s  earchbase="dc=oldorgname,dc=de" scope=sub schemachecking=on type=re  freshAndPersist retry="5 2 30 2 60 +" interval=00:00:00:30 timeout=0 network-time  out=0  keepalive=0:0:0 attrs="*,+" suffixmassage="dc=neworgname,dc=de" The sync proceeded, but I ended with uniqueMember attributes with the old base: dn: cn=team,ou=groups,dc=ou,dc=neworgname,dc=de uniqueMember: uid=user,ou=peolple,dc=ou,dc=oldorgname,dc=de The value of the attribute "member" gets rewritten into the new orgname. Ist this a bug or intentional behaviour? Kind regards,